Question

the digestive system - the liver and pancreas
when food passes out of the stomach it enters the small intestine.
the upper ten inches of the small intestine is called the duodenum.
it is in the area of the duodenum that liquids from the liver and pan-
creas enter the small intestine to aid in the process of digestion.
the liver is the largest gland in the body. the liver produces
a liquid called bile. the bile is produced continuously by the liver
but it is only needed after meals. bile is stored until needed in a
sac under the liver called the gall bladder. the gall bladder connects
to the small intestine through a tube called the bile duct. bile con-
tains no enzymes. it is more like a soap or detergent in that it sepa-
rates fats and oils into tiny droplets. this makes it easier for en-
zymes present in the small intestine to effectively digest the fats you
eat into fatty acids and glycerol.
the pancreas, a fish - shaped gland, is located in back of the
stomach. the large or head end, lies next to the duodenum. the duo-
denum loops around the pancreas like a huge letter c. the pancreas is
really two glands in one. first, it produces the hormone insulin which
it secretes directly into the blood stream. insulin is necessary for
the proper usage of sugar. second, it produces a digestive fluid called
pancreatic juice which enters the small intestine through the pancreatic
duct. pancreatic juice contains three very important enzymes: trypsin,
which breaks down protein into smaller molecules; pancreatic amylase,
which changes starch to sugar; and lipase, which converts fats to fatty
acids and glycerol.
questions

1. what gland is located in back of the stomach?
2. what liquid is produced by the liver?
3. in what structure is liver bile stored until needed?
4. what is the area of the small intestine called where liquids from the

liver and pancreas enter?

1. how many enzymes does bile contain? a)

how many enzymes does pancreatic juice contain? b)
activities
locate diagram 1 on activity sheet 3. color the pancreas black, the
liver brown, the gall bladder green, the bile duct yellow, and the
pancreatic duct blue. next, cut out diagram 1 and glue it to your
display sheet. then, label the pancreas, liver, gall bladder, bile duct
and pancreatic duct.

Explanation:

1. The text states "The pancreas, a fish - shaped gland, is located in back of the stomach."
2. It is mentioned that "The liver produces a liquid called bile."
3. "Bile is stored until needed in a sac under the liver called the gall bladder."
4. "It is in the area of the duodenum that liquids from the liver and pancreas enter the small intestine."
5. a) "Bile contains no enzymes." b) "Pancreatic juice contains three very important enzymes: trypsin, pancreatic amylase, and lipase."

Answer:

1. The pancreas
2. Bile
3. The gall bladder
4. The duodenum
5. a) 0 b) 3